Sony BVP-550, Maintenance Manual, Page: 752 / 924

4-42 (E)
BVP-550
8. Set the menu as follows.
MENU : Operation
PAGE : Gain SW (?3)
ITEM : Middle
→
12 dB
9. Set the menu as follows, and adjust the pre knee 2 for
G by using the MENU SEL switch.
Test Point : TP52 (GND:GND (A))/
Extension board (extending VA-163)
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee2[G]
Specifications : B = 1.80
±
0.02 V p-p
(Oscilloscope)
10. Set the menu as follows.
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : Test
→
1
11. Set the GAIN switch (on the side panel) to H (18dB).
Set the OUTPUT/DCC switch (on the side panel) to
CAM/ON.
12. Set the menu as follows, and adjust the pre knee 1 for
R by using the MENU SEL switch.
Test Point
: TEST OUT connector
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee1[R]
Specifications : Minimize the carrier leakage C.
13. Set the menu as follows, and adjust the pre knee 1 for
B by using the MENU SEL switch.
Test Point
: TEST OUT connector
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee1[B]
Specifications
: Minimize the carrier leakage C.
14. Set the menu as follows, and adjust the pre knee 2 for
R by using the MENU SEL switch.
Test Point : TEST OUT connector
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee2[R]
Specifications : Minimize the carrier leakage D.
15. Set the menu as follows, and adjust the pre knee 2 for
B by using the MENU SEL switch.
Test Point
: TEST OUT connector
Adjustment Point:
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : PreKnee2[B]
Specifications
: Minimize the carrier leakage D.
(Waveform Monitor)
File Store:
Execute the file store. Press the MENU SEL switch to
execute.
MENU : Triming File
PAGE : Triming File (T1)
ITEM : File Store
Resetting after Adjustment:
• Set the menu as follows.
MENU : Operation
PAGE : Gain SW (?3)
ITEM : Middle
→
9 dB
MENU : System config
PAGE : Pre Knee/Zebra (S4)
ITEM : Test
→
Off
• GAIN switch (on the side panel)
→
L (0 dB)
4-3. Overall Electrical Alignment
4-3-17. Pre Knee Adjustment